Wanted a black radio controlled clock and this seemed to fit the bill. I took a risk as nowhere does it state the size but looked like it was a descent size in the photo. Once received I was initially pleased with the size and looks. However the first issue was there were no instructions in English. With the other clocks I received there never seemed to be an issue so I just put the battery in ( not supplied). It was immediately evident that this was not set to work to GMT as kept showing 2 hours behind. I tried to find the instructions on line but the only site that had them wouldn't let me download them unless I said I liked product on Facebook or Twitter and I refused to be pushed into this, hence the clock will be winging its way back to Amazon.